ISO 6734-2010 PDF

Full title and description

ISO 6734:2010 — Sweetened condensed milk — Determination of total solids content (Reference method). This International Standard (also published as IDF 15:2010) specifies a reference gravimetric method for determining the total solids content of sweetened condensed milk, intended for use where a traceable, reproducible reference result is required.

Abstract

ISO 6734|IDF 15:2010 defines the reference procedure for measuring total solids in sweetened condensed milk, describing sample preparation, pre-drying and final drying/evaporation steps to obtain a stable residue and reportable solids content. The standard is concise and focused on producing a laboratory reference value for quality control and method validation.

General information

• Status: Published (Edition 2, confirmed as current following review).
• Publication date: November 2010 (2010-11).
• Publisher: International Organization for Standardization (ISO); also issued jointly as IDF 15:2010.
• ICS / categories: 67.100.10 (Milk and processed milk products).
• Edition / version: Edition 2 (2010).
• Number of pages: 5.

Scope

ISO 6734:2010 specifies the reference gravimetric method for the determination of total solids content in sweetened condensed milk. The procedure covers sampling of test portions, pre-drying on a boiling water bath and subsequent evaporation of remaining water with an inert drying medium (sand) in an oven at a controlled temperature to obtain a constant mass of residue. The method is intended as a reference for laboratories requiring traceable, comparable results and for validating routine methods.

Key topics and requirements

• Definition of test portion preparation and representative sampling for sweetened condensed milk.
• Pre-drying step (often on a boiling water bath) to remove free moisture prior to final drying.
• Final drying/evaporation in presence of sand at a specified oven temperature (example procedure element from earlier and current descriptions).
• Requirements for attaining constant mass, calculation and expression of total solids as percentage of sample mass.
• Use as a reference method for method validation, interlaboratory comparisons and regulatory or quality-control investigations.

Typical use and users

Primary users are dairy testing laboratories, national reference laboratories, manufacturers of sweetened condensed milk, regulatory agencies and organizations conducting method validation or proficiency testing. The standard is used when an authoritative, reproducible laboratory value for total solids is required (e.g., to verify routine rapid methods or to resolve disputes).

Related standards

Replaces ISO 6734:1989 (withdrawn). Equivalent/adopted national publications include BS ISO 6734:2010 and identical/adopted versions in other national catalogs; the document is published jointly with IDF as IDF 15:2010. Laboratories frequently refer to other ISO/IDF methods for milk and milk-product analysis when developing a complete testing program.

Keywords

sweetened condensed milk, total solids, dry matter, reference method, gravimetric determination, milk products, IDF 15:2010, oven drying, sample preparation, method validation.

FAQ

Q: What is this standard?

A: ISO 6734:2010 is an international reference method standard for determining the total solids content of sweetened condensed milk (also issued as IDF 15:2010).

Q: What does it cover?

A: It covers the laboratory procedure for preparing test portions, pre-drying and final drying/evaporation to constant mass, and the calculation and expression of total solids as a percentage of sample mass. It is intended as a reference procedure for quality assurance and method validation.

Q: Who typically uses it?

A: Dairy industry quality-control and development labs, national reference laboratories, regulatory laboratories, and organizations performing interlaboratory studies or validating routine test methods.

Q: Is it current or superseded?

A: ISO 6734:2010 is the current edition (Edition 2, 2010). The 1989 edition was withdrawn and replaced by the 2010 edition; the 2010 version was reviewed and confirmed in a later review cycle and remains current.

Q: Is it part of a series?

A: It is part of ISO/TC 34/SC 5 activity on milk and milk products methods; it is issued jointly with IDF (IDF 15:2010) and is commonly used alongside other ISO/IDF standards for milk analysis.

Q: What are the key keywords?

A: Sweetened condensed milk, total solids, dry matter, reference method, gravimetric, oven drying, sample preparation, IDF 15:2010.